Hello Railway Support Team,

I’m experiencing an issue with my Node.js backend deployed on Railway.

The application deploys successfully and runs normally at first. My frontend can connect to the backend and send requests to the "/send" endpoint. However, when I attempt to send an email using Nodemailer, the request gets stuck in a “sending” state.

After a short time, the frontend displays “Failed to connect to server,” and I notice that my Railway service crashes, even though it initially showed a successful deployment.

Here are the key details:

- Backend: Node.js (Express)

- Email: Nodemailer with Gmail (App Password)

- Hosting: Railway

- Endpoint: /send (POST request)

Observations:

- The backend works fine until the email function is triggered

- The request hangs and does not return a response

- After this, the Railway service crashes

I’ve already:

- Verified environment variables (EMAIL and PASS)

- Switched to manual SMTP configuration (smtp.gmail.com, port 465, secure)

- Added error handling and logging

The same setup works locally but fails when deployed.

Here is my deployed URL:

https://myportfoliobackend-production-a6a0.up.railway.app/

Could you please help me understand:

- If there are any SMTP or outbound connection restrictions

- Whether this could be a timeout or networking issue

- Any recommended setup for Nodemailer on Railway

Thank you for your support.

Best regards,

Fimanuel